Network protocol question

Does anyone know what kind of network protocol Race 07 uses? Would it be
P2P or have characteristics similar to P2P?

The reason that I ask is that people are saying that I have severe lag problems when I am online. The weird thing about it is that most of the time I can't see it. My pc checks out ok and my pings are typically 150 or less, but just in case I'm going to setup a completely different pc. After additional research I am beginning to suspect that my isp is delaying certain kinds of network traffic, notably p2p and protocols similar.